Article: Adding limestone fines to reduce heat generation of curing concrete

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Publisher Website: 10.1680/macr.11.00193
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Title	Adding limestone fines to reduce heat generation of curing concrete
Authors	Chen, JJ1 Kwan, AKH1
Keywords	Cement paste Inert filler Water/cement ratio Agglomeration Aggregates
Issue Date	2012
Publisher	Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.com
Citation	Magazine of Concrete Research, 2012, v. 64 n. 12, p. 1101-1111 [How to Cite?] DOI: http://dx.doi.org/10.1680/macr.11.00193
Abstract	It is well known that the heat generation of curing concrete may be reduced by decreasing the cement paste volume of the concrete. However, as the cement paste must be more than sufficient to fill the voids between aggregate particles, the cement paste volume should not be limitlessly decreased. Herein, it is proposed to add an inert filler, such as limestone fines, to fill into the voids between aggregate particles so that a smaller cement paste volume may be used and the heat generation of the concrete may be further reduced. To study the effectiveness of adding limestone fines in reducing the heat generation of curing concrete, a series of concrete mixes with water/cement ratios ranging from 0.35 to 0.60 and different amounts of limestone fines added were tested for their workability, strength and heat generation. The results revealed that the addition of limestone fines to decrease the cement paste volume would significantly increase the strength and, more importantly, substantially reduce the heat generation of the concrete.
ISSN	0024-9831 2011 Impact Factor: 0.5 2011 SCImago Journal Rankings: 0.036
DOI	http://dx.doi.org/10.1680/macr.11.00193

DC Field	Value
dc.contributor.author	Chen, JJ
dc.contributor.author	Kwan, AKH
dc.date.accessioned	2012-09-20T07:52:25Z
dc.date.available	2012-09-20T07:52:25Z
dc.date.issued	2012
dc.description.abstract	It is well known that the heat generation of curing concrete may be reduced by decreasing the cement paste volume of the concrete. However, as the cement paste must be more than sufficient to fill the voids between aggregate particles, the cement paste volume should not be limitlessly decreased. Herein, it is proposed to add an inert filler, such as limestone fines, to fill into the voids between aggregate particles so that a smaller cement paste volume may be used and the heat generation of the concrete may be further reduced. To study the effectiveness of adding limestone fines in reducing the heat generation of curing concrete, a series of concrete mixes with water/cement ratios ranging from 0.35 to 0.60 and different amounts of limestone fines added were tested for their workability, strength and heat generation. The results revealed that the addition of limestone fines to decrease the cement paste volume would significantly increase the strength and, more importantly, substantially reduce the heat generation of the concrete.
dc.description.nature	published_or_final_version
dc.identifier.citation	Magazine of Concrete Research, 2012, v. 64 n. 12, p. 1101-1111 [How to Cite?] DOI: http://dx.doi.org/10.1680/macr.11.00193
dc.identifier.doi	http://dx.doi.org/10.1680/macr.11.00193
dc.identifier.epage	1111
dc.identifier.hkuros	206129
dc.identifier.issn	0024-9831 2011 Impact Factor: 0.5 2011 SCImago Journal Rankings: 0.036
dc.identifier.issue	12
dc.identifier.scopus	eid_2-s2.0-84870945849
dc.identifier.spage	1101
dc.identifier.uri	http://hdl.handle.net/10722/163832
dc.identifier.volume	64
dc.language	eng
dc.publisher	Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.com
dc.publisher.place	United Kingdom
dc.relation.ispartof	Magazine of Concrete Research
dc.rights	Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees
dc.rights	Creative Commons: Attribution 3.0 Hong Kong License
dc.subject	Cement paste
dc.subject	Inert filler
dc.subject	Water/cement ratio
dc.subject	Agglomeration
dc.subject	Aggregates
dc.title	Adding limestone fines to reduce heat generation of curing concrete
dc.type	Article

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Author Affiliations

The University of Hong Kong